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Way-finder: guided tours through complex walkthrough models
dc.contributor.author | Andújar Gran, Carlos Antonio |
dc.contributor.author | Vázquez Alcocer, Pere Pau |
dc.contributor.author | Fairén González, Marta |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Llenguatges i Sistemes Informàtics |
dc.date.accessioned | 2011-07-27T10:22:05Z |
dc.date.available | 2011-07-27T10:22:05Z |
dc.date.created | 2004-09 |
dc.date.issued | 2004-09 |
dc.identifier.citation | Andújar, C.; Vázquez, P.; Fairén, M. Way-finder: guided tours through complex walkthrough models. "Computer graphics forum", Setembre 2004, vol. 23, núm. 3, p. 499-508. |
dc.identifier.issn | 0167-7055 |
dc.identifier.uri | http://hdl.handle.net/2117/13061 |
dc.description.abstract | The exploration of complex walkthrough models is often a difficult task due to the presence of densely occluded regions which pose a serious challenge to online navigation. In this paper we address the problem of algorithmic generation of exploration paths for complex walkthrough models. We present a characterization of suitable properties for camera paths and we discuss an efficient algorithm for computing them with little or no user intervention. Our approach is based on identifying the free-space structure of the scene (represented by a cell and portal graph) and an entropy-based measure of the relevance of a view-point. This metric is key for deciding which cells have to be visited and for computing critical way-points inside each cell. Several results on different model categories are presented and discussed. |
dc.format.extent | 10 p. |
dc.language.iso | eng |
dc.publisher | North Holland |
dc.subject | Àrees temàtiques de la UPC::Informàtica::Infografia |
dc.subject.lcsh | Graphical users interfaces (Computer systems) |
dc.subject.lcsh | Computational geometry |
dc.title | Way-finder: guided tours through complex walkthrough models |
dc.type | Article |
dc.subject.lemac | Interfícies gràfiques d'usuari (Informàtica) |
dc.subject.lemac | Geometria computacional |
dc.contributor.group | Universitat Politècnica de Catalunya. MOVING - Grup de Recerca en Modelatge, Interacció i Visualització en Realitat Virtual |
dc.identifier.doi | 10.1111/j.1467-8659.2004.00781.x |
dc.description.peerreviewed | Peer Reviewed |
dc.rights.access | Restricted access - publisher's policy |
local.identifier.drac | 1643314 |
dc.description.version | Postprint (published version) |
local.citation.author | Andújar, C.; Vázquez, P.; Fairén, M. |
local.citation.publicationName | Computer graphics forum |
local.citation.volume | 23 |
local.citation.number | 3 |
local.citation.startingPage | 499 |
local.citation.endingPage | 508 |
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